New method to purify contaminated water
Purifying water and greening nanotechnology could be as simple as shaking a vial of water and oil. At least that’s the case for a new method to clean contaminated water full of unwanted nanomaterials.
Nano implies small–and that’s great for use in medical devices, beauty products and smartphones–but it’s also a problem. The tiny nanoparticles, nanowires, nanotubes and other nanomaterials that make up our technology eventually find their way into water. The Environmental Protection Agency says more 1,300 commercial products use some kind of nanomaterial. And we just don’t know the full impact on health and the environment.
“These materials are very, very tiny and that means if you try to remove them and clean them out of contaminated water, that it’s quite difficult,” says Dongyan Zhang, a research scientist at Michigan Technological University. She adds that techniques like filter paper or meshes often don’t work.
Instead, shaking up oil and water traps the nanomaterials, which can be easily removed. The process clears out nearly 100 percent of nanowires, nanosheets, nanotubes and other one- and two-dimensional nanomaterials. Only zero-dimensional nanospheres are still too small to grab.
Read more: Shaking the nanomaterials out
The Latest on: Nanomaterial contaminated water
[google_news title=”” keyword=”Nanomaterial contaminated water” num_posts=”10″ blurb_length=”0″ show_thumb=”left”]
via Google News
The Latest on: Nanomaterial contaminated water
- New testing shows over 200 million Americans are drinking contaminated water: 'We're seeing more and more people are exposed'on May 13, 2024 at 3:15 am
"Even extremely low levels of exposure can negatively impact our health." New testing shows over 200 million Americans are drinking contaminated water: 'We're seeing more and more people are exposed' ...
- One of these vials is contaminated with nanoplastics. Chemistry can tell us which oneon May 13, 2024 at 2:59 am
And as scientists have become more confident about the sources and impacts of the microplastics visible to the naked eye, some have started to turn their attention to the smallest of the microplastics ...
- Waterloo idles drinking water well contaminated by ‘forever chemicals’on April 29, 2024 at 2:36 pm
Recent tests of Waterloo drinking water revealed one of the city’s wells has detectable amounts of PFAS, a toxic group of chemicals that are newly regulated by federal officials. The city decided to ...
- Contaminated water troubles residents of Kannagi Nagaron April 24, 2024 at 9:12 pm
According to metro water officials, the contamination is due to rust in the iron pipes through which water is supplied from the sumps. They added that the TDS levels in the water range from 700 ...
- The Best Well Water Filtration Systems for a Cleaner Supplyon April 17, 2024 at 3:41 am
Choosing a better well water filtration system for clean drinking water doesn’t have to be difficult. It’s easier when you know which contaminants are in your water, as different filtration ...
- New Hydrogel Material Removes Microplastics From Wateron April 14, 2024 at 5:00 pm
Once the hydrogel was fully spent, the researchers were also able to upcycle the material via hydrothermal processing to form carbon quantum dots – a useful nanomaterial that can also be used to ...
- Blood, sweat, and water: New paper analytical devices easily track health and environmenton March 28, 2024 at 6:53 am
Likewise, checking water quality for contaminants can be a lengthy process ... 202300141 Kawin Khachornsakkul et al, Gold Nanomaterial-Based Microfluidic Paper Analytical Device for Simultaneous ...
- Threatened Waters: Turning the Tide on Pesticide Contaminationon November 14, 2023 at 4:00 pm
Yet, water is being polluted at unprecedented rates, with pesticides, industrial chemicals, nutrients, metals, and other contaminants. Studies of major rivers and streams find that 90% of fish, 100% ...
- We can’t assume our water is safe to drink. But we can fix it.on February 17, 2021 at 10:30 am
The reality is that we can no longer assume that our water is safe to drink. How unsafe is it? Depending on the source of contamination and the exposure, health effects include neurological ...
- contaminated wateron August 18, 2020 at 6:53 am
Dixmoor residents receive free water filters amid ongoing water crisis Dixmoor residents struggling with the fallout of water main breaks across the village received some much needed relief Saturday.
via Bing News